Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I'm trying to convert the first page of a PDF to a JPG. I'm pretty sure I got this to work with certain PDFs, but is it really possible that certain PDFs are made incorrectly and cannot be converted?

I tried running this first:

$ convert 10-03-26.pdf[1] test.jpg

And I got the follow:

Error: /syntaxerror in readxref
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   %oparray_pop   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1062/1417(ro)(G)--   --dict:0/20(G)--   --dict:73/200(L)--   --dict:73/200(L)--   --dict:97/127(ro)(G)--   --dict:229/230(ro)(G)--   --dict:14/15(L)--
Current allocation mode is local
ESP Ghostscript 7.07.1: Unrecoverable error, exit code 1
convert: Postscript delegate failed `10-03-26.pdf'.

Running this instead:

$ convert -verbose -colorspace rgb '10-03-26.pdf[1]' test.jpg

I get the following:

Error: /syntaxerror in readxref
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   %oparray_pop   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1062/1417(ro)(G)--   --dict:0/20(G)--   --dict:73/200(L)--   --dict:73/200(L)--   --dict:97/127(ro)(G)--   --dict:229/230(ro)(G)--   --dict:14/15(L)--
Current allocation mode is local
ESP Ghostscript 7.07.1: Unrecoverable error, exit code 1
"gs" -q -dBATCH -dSAFER -dMaxBitmap=500000000 -dNOPAUSE -dAlignToPixels=0 "-sDEVICE=pnmraw" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-g792x1611" "-r72x72" -dFirstPage=2 -dLastPage=2 "-sOutputFile=/tmp/magick-XXU3T44P" "-f/tmp/magick-XXoMKL8Z" "-f/tmp/magic2eec1F"Start of Image
Define Huffman Table 0x00
          0   1   5   1   1   1   1   1
          1   0   0   0   0   0   0   0
Define Huffman Table 0x01
          0   3   1   1   1   1   1   1
          1   1   1   0   0   0   0   0
Define Huffman Table 0x10
          0   2   1   3   3   2   4   3
          5   5   4   4   0   0   1 125
Define Huffman Table 0x11
          0   2   1   2   4   4   3   4
          7   5   4   4   0   1   2 119
End Of Image
convert: Postscript delegate failed `10-03-26.pdf'.

Why would the conversion fail?

Just as an aside, this is happening on a (gs) Grid-Service on (mt) Media Temple hosting. I cannot install programs on the server, but both Imagemagick and Ghostscript are installed

Thanks!

share|improve this question

1 Answer 1

up vote 1 down vote accepted

The issue was that the files need to be made compatible with Acrobat 5.0 in order to work with such an old version of Ghostscript.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.